隔离罩多工位级进模设计说明书[带图纸].doc

1湘潭大学毕业设计说明书题目：隔离罩多工位级进模设计学院：机械工程学院专业：材料成型及控制工程学号：2005501331姓名：许东阳指导教师：谢桂兰2目录引言··············································第一章制件的工艺分析···························第二章拉深次数的确定和计算·····················第三章毛坯展开尺寸计算·························第四章排样设计·································第一节多工位级进模排样设计原则······················第二节产品的公差····································第三节排样设计及工位确定···························第五章成形设备的选择···························第一节冲裁力的计算··································第二节拉深力计算···································第三节卸件力、推件力计算··························第四节总冲压力计算·································第五节成形设备的选取·······························第六章模具基本结构选材及热处理·················第一节上模座········································第二节模柄·········································第三节导柱导套·····································第四节上模垫板····································第五节卸料板······································第六节凹、凸模固定板································3第七节下模垫板·····································第八节下模座········································第九节冲裁模········································第十节拉深模·······································第七章模架的选取·······························第八章模具主要结构设计·························第一节凸、凹模的固定方式····························第二节定距结构·····································第三节卸料板结构···································第四节浮料方式·····································第九章凸、凹模结构设计·························第一节冲裁间隙的确定·······························第二节拉深间隙的确定·······························第三节凸、凹模的公差确定··························第四节冲裁模刃口尺寸计算···························第五节拉深模刃口尺寸计算···························第六节冲工艺长孔凸凹模尺寸计算····················第七节表面粗糙度的确定····························第十章模具总装配图绘制及相关技术要求··········参考文献致谢隔离罩多工位级进模设计4许东阳湘潭大学机械工程学院05级材料成型及控制工程四班摘要：本书设计了一副隔离罩多工位级进模。通过分析隔离罩零件的成形工艺，确定其工艺方案及排样方法。通过相关计算，选择成形设备及确定模具结构类型和主要模具零件结构设计。关键词：隔离罩，多工位，级进模，成形工艺，工艺方案，排样方法，模具结构DesignofMulti-positionProgressiveDieforShieldingCanXuDongyangClassFour,SpecialtyofMaterialProcessingandControlEngineering,SchoolofMechanicalEngineeringXiangtanUniversity.Xiangtan411105,ChinaAbstract:AMulti-positionProgressiveDieforShieldingCanisdesignedinthispaper.Theanalysisofpartsformingprocessistodeterminetheirprocessplansandlayoutmethods.Throughtherelevantcalculation,youcanselecttheformingequipmentanddeterminethetypeofdiestructureandthestructuraldesignofthemainmoldparts.Keys：ShieldingCan，Multi-position，ProgressiveDie，processplans，layoutmethods，diestructure.5引言本次毕业设计的题目是隔离罩多工位级进模设计，它是包含拉深、冲孔、落料等多种工序七道工位的多工位级进模设计。制件是一电器元件中的一个小零件，外形为13.9±0.2mm×6±0.18mm×2.7mm带小耳的盒形件，底部有10±0.18mm×3.2mm长孔，四周用R0.5mm圆接，材料为0.2mm的08钢，成形后表面镀镍。本制件为大批量生产，采用标准的对角滑动导向模架，标准的三板式结构，并且采用导料板导向，侧刃定距。工位数不多，模具较小，采用人工送料。本设计分为十章。第一章讲述的是对制件进行工艺分析，模具类别的选择及基本生产工序的确定；第二章确定拉深次数及相关计算；第三章介绍了毛坯的展开，对毛坯展开尺寸的计算；第四章，排样设计，介绍了排样设计的原则、方法及搭边值确定；第五章，成形设备的选择，通过计算总的冲压力来初选冲压设备。第六章，模具基本结构选材及热处理，讲述了各主要部分的作用、选材及热处理的方法；第七章，模架的选取，根据材料的送进方向、出件方式、受力变形特点及压力机与模架的安装关系等因素综合考虑来确定模架结构。第八章，模具主要结构设计，主要包括卸料机构、导料机构、定距机构等结构设计；第九章，凸、凹模设计，对成形零件进行结构设计计算及主要参数的确定；第十章，模具总图的绘制及相关技术要求。冲压是一类典型的金属加工工艺，它是利用金属材料的塑性变形来改变毛坯材料的形状和尺寸，获得所需产品零件的加工过程。它具有生产率高，材料利用率高，精度高、质量稳定和操作方便等特点。冲压成形理论的研究是提高冲压技术的基础。研究推广能提高劳动生产效率及产品质量、降低成本和扩大冲压工艺应用范围的各种冲压新工艺，是冲压技术的发展方向之一。在实际生产中，当冲压件的生产批量较大、尺寸较小而公差要求较小时，若用分散的单一工序来冲压是不经济的甚至难于达到要求。这时在工艺上多采用工序集中的方案，即把两种或两种以上的单一工序集中在一副模具内完成，称为组合工序。根据工序组合的方法不同，又可将其分为复合、级进和复合-级进三种组合方式。级进冲压是在压力机上的一次工作行程中，按照一定的顺序在同一模具的不同工位上完成两种或两种以上的不同单一工序的一种组合方式。通过本次课程设计，使我更加了解模具设计的含义，以及懂得如何查阅相关资料和怎样解决在实际工作中遇到的实际问题，这为我们以后从事模具职业打下了良好的基础。本次毕业设计也得到了老师和同学的帮助，特别是谢桂兰老师的悉心指导，在此表示感谢！这次设计采用侧刃定距机构等都是我们需掌握的内容，加深了对级进模的了解及相关知识的掌握，巩固自己的理论知识，将知识付诸实践，为今后工作练兵、做好铺垫。由于实践经验的缺乏，且水平有限，时间仓促。设计过程中难免有错误和欠妥之处，恳请老师批评指正。